----------------------------------------------------------------------------
--	Ranked Matchmaking AI v1.3 New Structure
--	Author: adamqqq		Email:adamqqq@163.com
----------------------------------------------------------------------------
--------------------------------------
-- General Initialization
--------------------------------------
local utility = require(GetScriptDirectory() .. "/utility")
local ability_item_usage_generic = require(GetScriptDirectory() .. "/ability_item_usage_generic")
local AbilityExtensions = require(GetScriptDirectory() .. "/util/AbilityAbstraction")

local debugmode = false
local npcBot = GetBot()
if npcBot == nil or npcBot:IsIllusion() then
	return
end

local Talents = {}
local Abilities = {}
local AbilitiesReal = {}

ability_item_usage_generic.InitAbility(Abilities, AbilitiesReal, Talents)

local AbilityToLevelUp =
{
	Abilities[1],
	Abilities[3],
	Abilities[2],
	Abilities[1],
	Abilities[1],
	Abilities[5],
	Abilities[1],
	Abilities[3],
	Abilities[3],
	"talent",
	Abilities[3],
	Abilities[5],
	Abilities[2],
	Abilities[2],
	"talent",
	Abilities[2],
	"nil",
	Abilities[5],
	"nil",
	"talent",
	"nil",
	"nil",
	"nil",
	"nil",
	"talent",
}
local TalentTree = {
	function()
		return Talents[1]
	end,
	function()
		return Talents[3]
	end,
	function()
		return Talents[6]
	end,
	function()
		return Talents[7]
	end
}

-- check skill build vs current level
utility.CheckAbilityBuild(AbilityToLevelUp)

function BuybackUsageThink()
	ability_item_usage_generic.BuybackUsageThink();
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink();
end

function AbilityLevelUpThink()
	ability_item_usage_generic.AbilityLevelUpThink2(AbilityToLevelUp, TalentTree)
end

--------------------------------------
-- Ability Usage Thinking
--------------------------------------
function CanCast1(npcEnemy)
	return utility.NCanCast(npcEnemy) and (npcEnemy:DistanceFromFountain() >= 4000 or DotaTime() >= 30 * 60)
end

local cast = {}
cast.Desire = {}
cast.Target = {}
cast.Type = {}
local Consider = {}
local CanCast = { CanCast1, utility.NCanCast, utility.NCanCast, utility.UCanCast }
local enemyDisabled = utility.enemyDisabled

function GetComboDamage()
	return ability_item_usage_generic.GetComboDamage(AbilitiesReal)
end

function GetComboMana()
	return ability_item_usage_generic.GetComboMana(AbilitiesReal)
end

Consider[1] = function()
	local abilityNumber = 1
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = 800
	local Damage = 0
	--print(ability:GetName().." :Damage is "..Damage)


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local allys2 = GetUnitList(UNIT_LIST_ALLIED_HEROES)
	local enemys = npcBot:GetNearbyHeroes(CastRange + 300, true, BOT_MODE_NONE)
	local enemys2 = GetUnitList(UNIT_LIST_ENEMY_HEROES)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local enemysAll = GetUnitList(UNIT_LIST_ENEMY_HEROES)

	if npcBot:HasModifier("modifier_spirit_breaker_charge_of_darkness")
	then
		npcBot:Action_ClearActions(false)
	end

	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	-- Check for a channeling enemy
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		for _, npcEnemy in pairs(enemys) do
			if (npcEnemy:IsChanneling() and CanCast[abilityNumber](npcEnemy))
			then
				return BOT_ACTION_DESIRE_HIGH, npcEnemy
			end
		end
	end

	--Try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (CanCast[abilityNumber](WeakestEnemy))
			then
				if (
					HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
						npcBot:GetMana() > ComboMana)
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy;
				end
			end
		end
	end

	--gank
	if (
		npcBot:GetActiveMode() == BOT_MODE_LANING or
			npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY and HealthPercentage >= 0.7 and ManaPercentage >= 0.5)
	then
		--protect teammate
		for _, npcAlly in pairs(allys2) do
			local enemys3 = npcAlly:GetNearbyHeroes(800, true, BOT_MODE_NONE)
			local allys3 = npcAlly:GetNearbyHeroes(800, false, BOT_MODE_NONE)

			if (npcAlly:GetActiveMode() == BOT_MODE_RETREAT)
			then
				if (#enemys3 == 1)
				then
					local npcEnemy = enemys3[1]
					if (
						npcBot:GetHealth() < npcEnemy:GetEstimatedDamageToTarget(true, npcBot, 5.0, DAMAGE_TYPE_ALL) and
							CanCast[abilityNumber](npcEnemy))
					then
						return BOT_ACTION_DESIRE_HIGH + 0.1, npcEnemy;
					end
				end
			end

			if (npcAlly:GetAssignedLane() == LANE_MID)
			then
				if (#enemys3 == 1)
				then
					local npcEnemy = enemys3[1]
					local sumdamage = npcBot:GetEstimatedDamageToTarget(true, npcEnemy, 5.0, DAMAGE_TYPE_ALL) + 100
					for _, npcAlly in pairs(allys3) do
						if (npcAlly:GetHealth() / npcAlly:GetMaxHealth() >= 0.7 and npcAlly:GetActiveMode() ~= BOT_MODE_RETREAT)
						then
							sumdamage = sumdamage + npcAlly:GetEstimatedDamageToTarget(true, npcEnemy, 5.0, DAMAGE_TYPE_ALL)
						end
					end

					if (npcEnemy:GetHealth() < sumdamage * 1.25 or npcEnemy:GetHealth() / npcEnemy:GetMaxHealth() <= 0.6) and
						CanCast[abilityNumber](npcEnemy)
					then
						return BOT_ACTION_DESIRE_HIGH + 0.1, npcEnemy;
					end
				end
			end
		end

		--search target
		for _, npcEnemy in pairs(enemys2) do
			local allys3 = npcEnemy:GetNearbyHeroes(1600, true, BOT_MODE_NONE)
			local enemys3 = npcEnemy:GetNearbyHeroes(1600, false, BOT_MODE_NONE)
			local sumdamage = npcBot:GetEstimatedDamageToTarget(true, npcEnemy, 4.0, DAMAGE_TYPE_ALL)

			if (#enemys3 <= 2)
			then
				for _, npcAlly in pairs(allys3) do
					if (npcAlly:GetHealth() / npcAlly:GetMaxHealth() >= 0.7 and npcAlly:GetActiveMode() ~= BOT_MODE_RETREAT)
					then
						sumdamage = sumdamage + npcAlly:GetEstimatedDamageToTarget(true, npcEnemy, 4.0, DAMAGE_TYPE_ALL)
					end
				end
				if (npcEnemy:GetHealth() * 1.5 <= sumdamage and CanCast[abilityNumber](npcEnemy))
				then
					return BOT_ACTION_DESIRE_HIGH + 0.12, npcEnemy;
				end
			end
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	-- If we're seriously retreating, see if we can land a stun on someone who's damaged us recently
	if (npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_HIGH)
	then
		for _, npcEnemy in pairs(enemys) do
			if (npcBot:WasRecentlyDamagedByHero(npcEnemy, 2.0))
			then
				if (CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy))
				then
					return BOT_ACTION_DESIRE_HIGH, npcEnemy;
				end
			end
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = AbilityExtensions:GetTargetIfGood(npcBot)


		if (npcEnemy ~= nil and HealthPercentage >= 0.7)
		then
			local allys3 = npcEnemy:GetNearbyHeroes(1200, true, BOT_MODE_NONE)
			local enemys3 = npcEnemy:GetNearbyHeroes(1600, false, BOT_MODE_NONE)
			if (CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy) and #enemys3 <= #allys3)
			then
				return BOT_ACTION_DESIRE_MODERATE, npcEnemy
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

Consider[2] = function() --Target AOE Ability Example
	local abilityNumber = 2
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	-- If we're seriously retreating
	-- if ( npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_HIGH )
	-- then
	-- 	if ( npcBot:WasRecentlyDamagedByAnyHero( 2.0 ) )
	-- 	then
	-- 		return BOT_ACTION_DESIRE_HIGH, npcEnemy;
	-- 	end
	-- end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = npcBot:GetTarget();

		if (ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana)
		then
			if (npcEnemy ~= nil)
			then
				if (GetUnitToUnitDistance(npcBot, npcEnemy) < CastRange + 75 * #allys)
				then
					return BOT_ACTION_DESIRE_MODERATE
				end
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

Consider[5] = function()
	local abilityNumber = 5
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() or AbilityExtensions:CannotTeleport(npcBot) then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetAbilityDamage();


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(CastRange + 300, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	-- Check for a channeling enemy
	for _, npcEnemy in pairs(enemys) do
		if (npcEnemy:IsChanneling() and CanCast[abilityNumber](npcEnemy))
		then
			return BOT_ACTION_DESIRE_HIGH, npcEnemy
		end
	end

	--Try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (CanCast[abilityNumber](WeakestEnemy))
			then
				if (
					HeroHealth <= WeakestEnemy:GetActualIncomingDamage(Damage, DAMAGE_TYPE_MAGICAL) or
						(
						HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
							npcBot:GetMana() > ComboMana))
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy;
				end
			end
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	-- If we're seriously retreating, see if we can land a stun on someone who's damaged us recently
	if (npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_HIGH)
	then
		for _, npcEnemy in pairs(enemys) do
			if (npcBot:WasRecentlyDamagedByHero(npcEnemy, 2.0))
			then
				if (CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy))
				then
					return BOT_ACTION_DESIRE_HIGH, npcEnemy;
				end
			end
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = npcBot:GetTarget();

		if (npcEnemy ~= nil)
		then
			if (
				CanCast[abilityNumber](npcEnemy) and not enemyDisabled(npcEnemy) and
					GetUnitToUnitDistance(npcBot, npcEnemy) < CastRange + 75 * #allys)
			then
				return BOT_ACTION_DESIRE_MODERATE, npcEnemy
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

AbilityExtensions:AutoModifyConsiderFunction(npcBot, Consider, AbilitiesReal)
function AbilityUsageThink()

	-- Check if we're already using an ability
	if (npcBot:IsUsingAbility() or npcBot:IsChanneling() or npcBot:IsSilenced())
	then
		return
	end

	ComboMana = GetComboMana()
	AttackRange = npcBot:GetAttackRange()
	ManaPercentage = npcBot:GetMana() / npcBot:GetMaxMana()
	HealthPercentage = npcBot:GetHealth() / npcBot:GetMaxHealth()

	cast = ability_item_usage_generic.ConsiderAbility(AbilitiesReal, Consider)
	---------------------------------debug--------------------------------------------
	if (debugmode == true)
	then
		ability_item_usage_generic.PrintDebugInfo(AbilitiesReal, cast)
	end
	ability_item_usage_generic.UseAbility(AbilitiesReal, cast)
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink()
end
